
Cassette Style
100 Watt AC-DC Converters
S Series PFC
Edition 01/01.2001
5/27
100
150
200
250
300
50
1
3
0.5
1.5
2
2.5
l
i
[A
rms
]
U
i
[V AC]
04005
0.2
0.4
0.6
0.8
1
0
1
0.7
0.75
0.8
0.85
0.9
0.95
Power Factor
I
o
/
I
o nom
U
i
= 230 V AC
U
i
= 85 V AC
04004
3
5
7
9
11
13
17
19
15
Harm.
3.0
2.5
2.0
1.5
1.0
0.5
0
I
i [mA/W]
3.5
04042
Limit class D according
to IEC/EN 61000-3-2
Fig. 6
Input current versus input voltage at I
o nom
Fig. 5
Harmonic currents at the input, IEC/EN 61000-3-2,
class D. U
i
= U
i nom
, I
o
= I
o nom
.
Fig. 7
Power factor versus output current at U
i
230 V AC and
85 V AC.
Static Input current Characteristic
Harmonic Currents
The harmonic distortion is well below the limits specified in
IEC/EN 61000-3-2, class D.
1
2
3
t
[ms]
1
50
100
I
inr
[A]
130
0
U
i
= 255 V
rms
U
i
= 115 V
rms
04006
Input Inrush Current Characteristic
Fig. 4
Theoretical input inrush current versus time at U
i
255 V
rms
and 115 V
rms
, R
ext
= 0.
Power Factor, Harmonics
Power factor correction is achieved by controlling the input
current waveform synchronously with the input voltage
waveform. The power factor control is active under all oper-
ating conditions.